Evidence for a Negative Effect of Double-crested Cormorants (Phalacrocorax auritus) on Invasive European Fire Ants (Myrmica rubra)

Aditi Gupta, Kristi Rudmik, Gail S. Fraser


Nesting of Double-crested Cormorants (Phalacrocorax auritus) in western Lake Ontario is associated with reduced abundance and nest density of European Fire Ants (Myrmica rubra). The impact on fire ants may be substrate related. It is of potential importance because of the negative effect of fire ants on ground-nesting water birds.


Double-crested Cormorant; Phalacrocorax auritus; European Fire Ant; Myrmica rubra; invasive species; ant nest density; non-native; guano; soil

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DOI: http://dx.doi.org/10.22621/cfn.v131i4.1845

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